AK4430 参数 Datasheet PDF下载

[AK4430]

ANALOG CHARACTERISTICS

(Ta = 25°C; VDD=CVDD = +3.3V; fs = 44.1 kHz; BICK = 64fs; Signal Frequency = 1 kHz;

24bit Input Data; Measurement frequency = 20Hz

∼

20kHz; R

L

≥5kΩ,

unless otherwise specified)

Parameter

min

typ

max

Resolution

24

Dynamic Characteristics

5)

THD+N

fs=44.1kHz, BW=20kHz

-

-91

-82

fs=96kHz, BW=40kHz

-

-91

-

fs=192kHz, BW=40kHz

-

-89

-

Dynamic Range (-60dBFS with A-weighted,

96

104

-

S/N (A-weighted,

96

104

-

Interchannel Isolation (1kHz)

90

104

-

Interchannel Gain Mismatch

-

0.2

0.5

PSRR (Note

9)

62

DC Accuracy

DC Offset (at output pin)

-5

0

+5

Gain Drift

-

100

-

Output Voltage (Note

8)

1.85

2.0

2.15

Load Capacitance (Note

-

-

25

Load Resistance

5

-

-

Power Supplies

Power Supply Current: (Note

20

28

Normal Operation (fs≤96kHz)

22

31

Normal Operation (fs=192kHz)

10

100

Power-Down Mode (Note

Note 5. Measured by Audio Precision (System Two). Refer to the evaluation board manual.

Note 6. 98dB for 16-bit input data

Note 7. S/N does not depend on input data length.

Note 8. Full-scale voltage (0dB). Output voltage is proportional to the voltage of VDD

AOUT (typ.@0dB) = 2Vrms × VDD/3.3.

Note 9. PSRR is applied to VDD and CVDD with 1kHz, 50mVpp.

Note 10. In case of driving capacitive load, inset a resistor between the output pin and the capacitive load.

Note 11. The current into VDD and CVDD.

Note 12. All digital inputs including clock pins (MCLK, BICK and LRCK) are fixed to VSS or VDD.

Units

Bits

dB

dB

dB

dB

dB

dB

dB

dB

mV

ppm/°C

Vrms

pF

kΩ

mA

mA

μA

MS1196-E-01

-5-

2011/03